4686289 has 2 divisors, whose sum is σ = 4686290. Its totient is φ = 4686288.

The previous prime is 4686287. The next prime is 4686307. The reversal of 4686289 is 9826864.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4601025 + 85264 = 2145^2 + 292^2 .

It is a cyclic number.

It is not a de Polignac number, because 4686289 - 2¹ = 4686287 is a prime.

It is a super-2 number, since 2×4686289² = 43922609183042, which contains 22 as substring.

Together with 4686287, it forms a pair of twin primes.

4686289 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (4686281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2343144 + 2343145.

It is an arithmetic number, because the mean of its divisors is an integer number (2343145).

Almost surely, 2^4686289 is an apocalyptic number.

It is an amenable number.

4686289 is a deficient number, since it is larger than the sum of its proper divisors (1).

4686289 is an equidigital number, since it uses as much as digits as its factorization.

4686289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 165888, while the sum is 43.

The square root of 4686289 is about 2164.7838229255. The cubic root of 4686289 is about 167.3438241317.

The spelling of 4686289 in words is "four million, six hundred eighty-six thousand, two hundred eighty-nine".